.OMA File Extension
File TypeSony OpenMG Music File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is an OMA file?
Music file saved in Sony's proprietary ATRAC (Adaptive Transform Acoustic Coding) format; may contain DRM copy protection to prevent the file from being played on unauthorized computers or devices.
OMA files were used for distributing music through the Sony CONNECT Music Store, which was discontinued in March 2008.